Use of biomass, waste and residual materials Gesellschaft für nachhaltige Stoffnutzung mbH: GNS
Since 1998, the GNS expert team, consisting of chemists as well as environmental and process engineers, has been active in the field of development, consulting and engineering for the utilisation of biomass, residues and waste. Our goal is to use natural resources sustainably.
Reduce, reuse, recycle – we pay a great value to sustainability!
We at GNS have specialised in the areas of recycling management, environmental technology and the use of biomass. Our work aims to develop and implement technologies for sustainable material use up to practical maturity. Our service profile ranges from research to marketing.
Your specialists for the use of natural resources and residual materials – our services from one source:
- Development of new process engineering solutions for your trickiest problems
- Process for biomass gasification and fermentation treatment
- Testing and evaluation of processes for the use of biomass, waste and residual materials
- Consulting and studies for the analysis and optimisation of material flow
- Laboratory and engineering services
- Independent expert opinions
- Supervision of practice facilities
- Process optimisation
Cooperation with strong partners concepts and processes for sustainable material use
From scientific conception to technology development and project management, we can take on the realisation of complex tasks in cooperation with partner companies in the use of biomass, waste and residual materials. We are active in Germany and throughout Europe.
We are a member of the Horizon 2020 SYSTEMIC project, which is working on a variety of technologies for the recovery of mineral nutrients and the production of (nutrient-poor) organic soil improvers and fertilisers. Through nutrient recovery, plant owners can process biowaste into user-specific products for the regional market.
We offer investors, planners and plant operators investment security through proven expertise
Procedures and combinations of procedures often involve great risks for the investor. Especially on the level of process functionality, extensive expertise is essential. Only in this way can investments worth millions generate the desired return.
Our team has decades of experience in environmental and process engineering. Many investors, planners and plant operators have already benefited from the knowledge of our process chemists and process engineers. Every process is carefully examined by us down to the smallest detail. This gives you greater investment security and means you do not have to fear any unpleasant surprises.
Would you like to learn more about our processes for the use and processing of biomass and waste as well as for the recovery of recyclable materials? Then we look forward to hearing from you!

DESPITE CORONA - WE ARE STILL THERE FOR YOU! We are also there for you in corona times and are at your side with our team of experts and our services! Stay healthy.
We provide independent expert opinions for all thermochemical, chemical and biochemical processes for the production of gaseous and liquid fuels from biomass and residues.
We carry out chemical-technical as well as ecological, environmental and economic evaluations of processes, products, residues and emissions.
Contact us!